Sudhir Mandarapu 6/5/09 B Block Climbing Stairs Problem 5.1 BIG Idea: You can determine the SLOPE of a line using the Table or Graph. Essential Question: How steep is that line? Determine the steepness of a set of stairs. To calculate the steepness you will need to measure the rise and run of a step. Measure at least two steps in the set of stairs you choose. Make a sketch of the stairs, and label it with the measurements you found How do the stairs you measured compare with the guidelines above? Guidelines:
The ratio of rise to run for each step should be between 0.45 and 0.60.
The rise plus the run for each step should be between 17 and 17.5 inches.
Slope= rise/run
Rise=7; Run=12
7÷12= 0.58333333
The ratio of rise to run is between 0.45 and 0.60, but the rise plus run is not between 17 and 17.5 inches; 0.45+0.60= 1.50.
Problem 5.1 Follow Up 1.)Make and label a scale drawing of stairs that don’t meet the carpenters’ guidelines. Explain why the stairs you drew are steeper (or less steep) than the stairs described in the guidelines.
5÷13=0.384615385; 5+13=18
6/5/09
B Block
Climbing Stairs
Problem 5.1
BIG Idea: You can determine the SLOPE of a line using the Table or Graph.
Essential Question: How steep is that line?
Determine the steepness of a set of stairs.
To calculate the steepness you will need to measure the rise and run of a step. Measure at least two steps in the set of stairs you choose. Make a sketch of the stairs, and label it with the measurements you found
How do the stairs you measured compare with the guidelines above?
Guidelines:
- The ratio of rise to run for each step should be between 0.45 and 0.60.
- The rise plus the run for each step should be between 17 and 17.5 inches.
Slope= rise/runRise=7; Run=12
7÷12= 0.58333333
The ratio of rise to run is between 0.45 and 0.60, but the rise plus run is not between 17 and 17.5 inches; 0.45+0.60= 1.50.
Problem 5.1 Follow Up
1.) Make and label a scale drawing of stairs that don’t meet the carpenters’ guidelines. Explain why the stairs you drew are steeper (or less steep) than the stairs described in the guidelines.
5÷13=0.384615385; 5+13=18
2.) You can use the ideas about the steepness